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encodebin: Autoplug formatters
Autoplug formatters for streams if a formatter with secondary or higher rank is found. Formatters are autoplugged when there is no muxer or when the muxer doesn't implement the tagsetter interface. Currently only the first formatter found is plugged, this might help in lots of cases, but it doesn't solve the 'lamemp3 ! xingmux ! id3mux' case. https://bugzilla.gnome.org/show_bug.cgi?id=649841
This commit is contained in:
Thiago Santos
parent
0060900d68
commit
b5fb542386
1 changed files with 104 additions and 8 deletions
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@ -162,6 +162,7 @@ struct _GstEncodeBin
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/* available muxers, encoders and parsers */
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GList *muxers;
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GList *formatters;
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GList *encoders;
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GList *parsers;
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@ -205,6 +206,7 @@ struct _StreamGroup
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GstElement *parser;
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GstElement *smartencoder;
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GstElement *outfilter; /* Output capsfilter (streamprofile.format) */
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GstElement *formatter;
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GstElement *outqueue; /* Queue just before the muxer */
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};
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@ -279,6 +281,9 @@ static void stream_group_remove (GstEncodeBin * ebin, StreamGroup * sgroup);
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static GstPad *gst_encode_bin_request_pad_signal (GstEncodeBin * encodebin,
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GstCaps * caps);
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static inline GstElement *_get_formatter (GstEncodeBin * ebin,
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GstEncodingProfile * sprof);
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static void
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gst_encode_bin_class_init (GstEncodeBinClass * klass)
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{
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@ -388,6 +393,9 @@ gst_encode_bin_dispose (GObject * object)
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if (ebin->muxers)
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gst_plugin_feature_list_free (ebin->muxers);
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if (ebin->formatters)
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gst_plugin_feature_list_free (ebin->formatters);
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if (ebin->encoders)
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gst_plugin_feature_list_free (ebin->encoders);
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@ -410,15 +418,14 @@ static void
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gst_encode_bin_init (GstEncodeBin * encode_bin)
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{
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GstPadTemplate *tmpl;
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GList *formatters;
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encode_bin->muxers =
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gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_MUXER,
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GST_RANK_MARGINAL);
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formatters =
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encode_bin->formatters =
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gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_FORMATTER,
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GST_RANK_SECONDARY);
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encode_bin->muxers = g_list_concat (encode_bin->muxers, formatters);
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encode_bin->encoders =
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gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_ENCODER,
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@ -910,6 +917,16 @@ no_template:
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}
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}
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static gboolean
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_has_class (GstElement * element, const gchar * classname)
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{
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GstElementClass *klass;
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klass = GST_ELEMENT_GET_CLASS (element);
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return strstr (klass->details.klass, classname) != NULL;
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}
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/* FIXME : Add handling of streams that don't need encoding */
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/* FIXME : Add handling of streams that don't require conversion elements */
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/*
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@ -966,6 +983,7 @@ _create_stream_group (GstEncodeBin * ebin, GstEncodingProfile * sprof,
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muxerpad = get_compatible_muxer_sink_pad (ebin, NULL, format);
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if (G_UNLIKELY (muxerpad == NULL))
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goto no_muxer_pad;
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}
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/* Output Queue.
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@ -988,6 +1006,26 @@ _create_stream_group (GstEncodeBin * ebin, GstEncodingProfile * sprof,
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}
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gst_object_unref (srcpad);
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/* Check if we need a formatter
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* If we have no muxer or
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* if the muxer isn't a formatter and doesn't implement the tagsetter interface
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*/
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if (!ebin->muxer
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|| (!gst_element_implements_interface (ebin->muxer, GST_TYPE_TAG_SETTER)
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|| !_has_class (ebin->muxer, "Formatter"))) {
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sgroup->formatter = _get_formatter (ebin, sprof);
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if (sgroup->formatter) {
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GST_DEBUG ("Adding formatter for %" GST_PTR_FORMAT, format);
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gst_bin_add (GST_BIN (ebin), sgroup->formatter);
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tosync = g_list_append (tosync, sgroup->formatter);
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if (G_UNLIKELY (!fast_element_link (sgroup->formatter, last)))
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goto formatter_link_failure;
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last = sgroup->formatter;
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}
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}
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/* Output capsfilter
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* This will receive the format caps from the streamprofile */
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GST_DEBUG ("Adding output capsfilter for %" GST_PTR_FORMAT, format);
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@ -1327,10 +1365,15 @@ muxer_link_failure:
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GST_ERROR_OBJECT (ebin, "Couldn't link encoder to muxer");
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goto cleanup;
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outfilter_link_failure:
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formatter_link_failure:
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GST_ERROR_OBJECT (ebin, "Couldn't link output filter to output queue");
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goto cleanup;
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outfilter_link_failure:
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GST_ERROR_OBJECT (ebin,
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"Couldn't link output filter to output queue/formatter");
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goto cleanup;
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passthrough_link_failure:
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GST_ERROR_OBJECT (ebin, "Failed linking splitter in passthrough mode");
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goto cleanup;
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@ -1390,10 +1433,49 @@ _factory_can_sink_caps (GstElementFactory * factory, const GstCaps * caps)
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return FALSE;
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}
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static inline GstElement *
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_get_formatter (GstEncodeBin * ebin, GstEncodingProfile * sprof)
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{
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GList *formatters, *tmpfmtr;
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GstElement *formatter = NULL;
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GstElementFactory *formatterfact = NULL;
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const GstCaps *format;
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const gchar *preset;
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format = gst_encoding_profile_get_format (sprof);
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preset = gst_encoding_profile_get_preset (sprof);
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GST_DEBUG ("Getting list of formatters for format %" GST_PTR_FORMAT, format);
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formatters =
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gst_element_factory_list_filter (ebin->formatters, format, GST_PAD_SRC,
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FALSE);
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if (formatters == NULL)
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goto beach;
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/* FIXME : signal the user if he wants this */
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for (tmpfmtr = formatters; tmpfmtr; tmpfmtr = tmpfmtr->next) {
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formatterfact = (GstElementFactory *) tmpfmtr->data;
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GST_DEBUG_OBJECT (ebin, "Trying formatter %s",
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GST_PLUGIN_FEATURE_NAME (formatterfact));
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if ((formatter =
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_create_element_and_set_preset (formatterfact, preset, NULL)))
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break;
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}
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gst_plugin_feature_list_free (formatters);
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beach:
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return formatter;
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}
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static inline GstElement *
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_get_muxer (GstEncodeBin * ebin)
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{
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GList *muxers, *tmpmux;
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GList *muxers, *formatters, *tmpmux;
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GstElement *muxer = NULL;
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GstElementFactory *muxerfact = NULL;
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const GList *tmp;
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@ -1408,6 +1490,12 @@ _get_muxer (GstEncodeBin * ebin)
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muxers =
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gst_element_factory_list_filter (ebin->muxers, format, GST_PAD_SRC, TRUE);
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formatters =
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gst_element_factory_list_filter (ebin->formatters, format, GST_PAD_SRC,
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TRUE);
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muxers = g_list_concat (muxers, formatters);
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if (muxers == NULL)
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goto beach;
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@ -1592,9 +1680,17 @@ stream_group_free (GstEncodeBin * ebin, StreamGroup * sgroup)
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if (sgroup->outqueue)
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gst_element_set_state (sgroup->outqueue, GST_STATE_NULL);
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/* Capsfilter - outqueue */
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gst_element_set_state (sgroup->outfilter, GST_STATE_NULL);
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gst_element_unlink (sgroup->outfilter, sgroup->outqueue);
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if (sgroup->formatter) {
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/* capsfilter - formatter - outqueue */
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gst_element_set_state (sgroup->formatter, GST_STATE_NULL);
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gst_element_set_state (sgroup->outfilter, GST_STATE_NULL);
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gst_element_unlink (sgroup->formatter, sgroup->outqueue);
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gst_element_unlink (sgroup->outfilter, sgroup->formatter);
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} else {
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/* Capsfilter - outqueue */
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gst_element_set_state (sgroup->outfilter, GST_STATE_NULL);
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gst_element_unlink (sgroup->outfilter, sgroup->outqueue);
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}
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gst_element_set_state (sgroup->outqueue, GST_STATE_NULL);
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gst_bin_remove (GST_BIN (ebin), sgroup->outqueue);
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